rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9252/3:b..l P9250/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=55265, q=882 ncpus=2)
task:syz.1.678       state:R  running task     stack:23376 pid:9250  tgid:9248  ppid:8792   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26
Code: 4c 89 fa e8 cd b0 09 00 8b 9d 70 ff ff ff 31 ff 89 de e8 9e bc 5e 00 85 db 74 4b 4c 8d bd 70 ff ff ff 4c 89 ff e8 2b 7f 09 00 <48> 89 c3 31 ff 48 89 c6 e8 1e bd 5e 00 48 85 db 74 31 4c 89 f7 48
RSP: 0018:ffffc9000437e760 EFLAGS: 00000246
RAX: ffffffff821bba90 RBX: ffffffff821bc6b0 RCX: 0000000000040000
RDX: ffffc900196e1000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000437e7f0 R08: ffffffff8140ee98 R09: ffffffff8141095f
R10: 0000000000000003 R11: ffff88801a7a5a00 R12: ffff88801a7a5a00
R13: ffffffff8181dd30 R14: ffffc9000437e840 R15: ffffc9000437e760
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfb/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x75/0x3f0 mm/page_owner.c:297
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1093 [inline]
 free_unref_page+0xd22/0xea0 mm/page_alloc.c:2588
 __folio_put+0x3b9/0x620 mm/swap.c:129
 migrate_folio_move mm/migrate.c:1329 [inline]
 migrate_pages_batch+0x2eb7/0x3960 mm/migrate.c:1812
 migrate_pages_sync mm/migrate.c:1878 [inline]
 migrate_pages+0x1fb0/0x3550 mm/migrate.c:1987
 compact_zone+0x3404/0x4af0 mm/compaction.c:2671
 compact_node mm/compaction.c:2935 [inline]
 compact_nodes mm/compaction.c:2957 [inline]
 sysctl_compaction_handler+0x496/0x990 mm/compaction.c:3008
 proc_sys_call_handler+0x553/0x8b0 fs/proc/proc_sysctl.c:592
 iter_file_splice_write+0xbd9/0x14e0 fs/splice.c:743
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0x120/0x220 fs/splice.c:1164
 splice_direct_to_actor+0x590/0xc90 fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x28c/0x3e0 fs/splice.c:1233
 do_sendfile+0x56d/0xe20 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1356 [inline]
 __se_sys_sendfile64+0x100/0x1e0 fs/read_write.c:1348
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5cce175bd9
RSP: 002b:00007f5ccef23048 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f5cce303f60 RCX: 00007f5cce175bd9
RDX: 00000000200000c0 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00007f5cce1e4a98 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5cce303f60 R15: 00007ffe44307948
 </TASK>
task:sed             state:R  running task     stack:23680 pid:9252  tgid:9252  ppid:9251   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6924
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6948
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 filemap_map_pages+0x1707/0x1e70 mm/filemap.c:3654
 do_fault_around mm/memory.c:4879 [inline]
 do_read_fault mm/memory.c:4912 [inline]
 do_fault mm/memory.c:5051 [inline]
 do_pte_missing mm/memory.c:3897 [inline]
 handle_pte_fault+0x3b9d/0x7090 mm/memory.c:5381
 __handle_mm_fault mm/memory.c:5524 [inline]
 handle_mm_fault+0x10df/0x1ba0 mm/memory.c:5689
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f9e2283793f
RSP: 002b:00007ffd1278f680 EFLAGS: 00010297
RAX: 0000000000000036 RBX: 0000564eb9098930 RCX: 00007f9e22851588
RDX: 0000000022773704 RSI: 0000564eb9098010 RDI: 0000564eb909b1c0
RBP: 0000564eb909b0c0 R08: 0000000000000001 R09: cbf7e07028101e29
R10: 000000000000001f R11: 0000000000000007 R12: 0000564eb909b1d0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10525 jiffies! g55265 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:26576 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>